now
standard form for a linear equation means
• all coefficients must be integers, no fractions
• only the constant on the right-hand-side
• all variables on the left-hand-side, sorted
• "x" must not have a negative coefficient
therefore,
Answer:
could you pls put that in English mabye then I could help u :)
Cassie's total spent is equal to money spent on shares bought and commission charges of broker.
<u>Money spent on shares bought:</u>
- 92 shares of Hyren Airlines at $13.70 per share =
- 130 shares of Giaco Household Goods at $3.28 per share =
- 126 shares of Iwad Records at $8.06 per share =
The sum total is 
dollars
<u>Commission charges of broker:</u>
If broker charges $4.25 every 10 shares, he charges 
dollars per share.
Total number of shares bought by Cassie is 
shares.
Total spent on commissions, thus, is 
dollars.
Cassie's total money spent is 
dollars.
Rounded to nearest dollar, it is $2850.
ANSWER: $2850
This problem can be solved by algebraic method.
Let
x = the total time spent of all clients in Plan A
y = the total time spent of all clients in Plan B
We represent two variables x and y because there are two plans that won't be happened simultaneously.
On Wednesday, the two workout plans have the total time of 6 hours. We equate
3x + 5y = 6
While on Thursday, the total time is 12 hours. We also equate
9x + 7y = 12
To find x and y, we can use the substitution method. For the first equation, we arrange it in terms of y, that is
5y = 6 - 3x
y = (6 - 3x)/5
Substitute it to the second equation:
9x + (7/5)(6 - 3x) = 12
9x + (42/5) - (21/5)x = 12
Multiply the equation by 5 to cancel the denominator:
45x + 42 - 21x = 60
45x - 21x = 60 - 42
24x = 18
x = 18/24 = 3/4 hours
For y:
3(3/4) + 5y = 6
9/4 + 5y = 6
Multiply the equation by 4 to cancel the denominator:
9 + 20y = 24
20y = 24 - 9
20y = 15
y = 15/20 = 3/4 hours
Hence, each workout plans are done within 3/4 hours (or 45 minutes).
